However, what I'm really looking for is a Starbound server which uses the S3r1ous Mods mod pack. (It's an extremely popular mod pack, with over 15,000 downloads, and it includes Frackin Universe. A long time ago there were several servers which used it. Now, strangely, there are none.)

I thought I would suggest this as the server page says, "I will take requests for more mods."

Also, after joining the forum, I noticed that there is no Starbound category...